Is ubuntu trying to resolve localhost to an ipv6 address?

[john]

I am troubleshooting some network issues. Running wireshark and
watching traffic I notice I have many messages like this:

DNS Standard query AAAA localhost.vanguard.vashonsd.org
DNS Standard query response, no such name

I am running ubuntu Hardy 8.04.3.

/etc/hosts looks like

127.0.0.1	localhost
127.0.1.1	vbuntu vbuntu.vanguard.vashonsd.org
10.114.5.50	paul.vanguard.vashonsd.org	paul

my /etc/nsswitch.conf file has this entry

hosts            files dns wins

What exactly is going on here? It looks like the server is trying to query
a IP6 FQDN for localhost.

I see this but I am not sure it pertains.
https://bugs.launchpad.net/ubuntu/+source/nss-mdns/+bug/287499

Can anyone help me sort this out?

Thanks!

John